HP Officejet Pro X451 - Page 9

REDI distribution PCA ............................................................................. 118
Feed motor encoder sensor PCA .............................................................. 119
Eject flap opto PCA ................................................................................ 122
Printzone distribution PCA ....................................................................... 122
Media presence sensor PCA/flag ............................................................ 125
Main PCA ............................................................................................. 126
Main PCA calibration procedure .............................................................. 131
Tray 3 interconnect PCA ......................................................................... 134
Pick encoder distribution PCA .................................................................. 135
Wireless PCA ........................................................................................ 136
2 Parts and diagrams ...................................................................................................... 137
Order parts by authorized service providers ............................................................................ 138
Order replacement parts ........................................................................................ 138
Related documentation and software ....................................................................... 138
Supplies part numbers ........................................................................................... 138
Customer self-repair parts ....................................................................................... 139
How to use the parts lists and diagrams .................................................................................. 141
Assembly locations ............................................................................................................... 142
Front view (X451 Series) ........................................................................................ 142
Front view (X551 Series) ........................................................................................ 143
Back view ............................................................................................................ 144
Covers, panels, and doors .................................................................................................... 146
Internal assemblies ............................................................................................................... 148
Alphabetical parts list ........................................................................................................... 158
Numerical parts list .............................................................................................................. 163
Index ............................................................................................................................... 169
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